EP 0870002 A1 19981014 - ELECTROCHROMIC TIN OXIDE
Title (en)
ELECTROCHROMIC TIN OXIDE
Title (de)
ELECTROCHROMES ZINN-OXID
Title (fr)
OXYDE D'ETAIN ELECTROCHROMIQUE
Publication
Application
Priority
- US 9620499 W 19961223
- US 922695 P 19951226
Abstract (en)
[origin: US6084701A] Tin oxide doped with an electrochromically effective amount of a metal, e.g. antimony or niobium, which provides a color change when the doped tin oxide is exposed to an electrochemical potential in the presence of mobile ions. Particles of electrochromic doped tin oxide, e.g. coated on a white or pastel pigment substrate, have a contrast ratio greater than 1.2, where contrast ratio is a measure of electrochromic functionality of a material and is the ratio of reflectance of the material in an oxidized state to the color of the material in a reduced state and where color is a photodiode measurement of the value of light reflected off the oxidized or reduced material from a constant source of light shining on the material. Such doped tin oxide-containing particles are useful as electrochromic material in display devices.
IPC 1-7
IPC 8 full level
C01G 19/02 (2006.01); C09K 9/00 (2006.01); C09K 9/02 (2006.01); G02F 1/1523 (2019.01); H01B 1/08 (2006.01); H01B 5/00 (2006.01); H01B 5/14 (2006.01)
CPC (source: EP KR US)
C09K 9/00 (2013.01 - EP KR US); C09K 9/02 (2013.01 - EP US); G02F 1/1523 (2013.01 - EP US); H01B 1/08 (2013.01 - EP KR US); Y10T 428/2982 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9723578 A1 19970703; AT E240376 T1 20030515; AU 1344797 A 19970717; CA 2241286 A1 19970703; DE 69628198 D1 20030618; EP 0870002 A1 19981014; EP 0870002 B1 20030514; JP 2000502398 A 20000229; JP 2005119946 A 20050512; KR 100425397 B1 20040612; KR 19990076783 A 19991015; US 5876634 A 19990302; US 6084701 A 20000704
DOCDB simple family (application)
US 9620499 W 19961223; AT 96944973 T 19961223; AU 1344797 A 19961223; CA 2241286 A 19961223; DE 69628198 T 19961223; EP 96944973 A 19961223; JP 2004243253 A 20040824; JP 52383997 A 19961223; KR 19980704908 A 19980625; US 25682999 A 19990224; US 77321096 A 19961223